/*
 * Copyright (C) 2010 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.zxing.code.zxing.utils;


import android.app.Activity;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.AssetFileDescriptor;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Vibrator;
import android.preference.PreferenceManager;
import android.util.Log;


import com.zxing.R;

import java.io.Closeable;
import java.io.IOException;

/**
 *
 */
public class BeepManager implements MediaPlayer.OnCompletionListener, MediaPlayer.OnErrorListener, Closeable {


    static final long VIBRATE_DURATION = 200L;

    private final Activity activity;
    private MediaPlayer mediaPlayer;
    private boolean vibrate;
    private OnMusicListener mOnMusicListener;

    public BeepManager(Activity activity) {
        this.activity = activity;
        this.mediaPlayer = null;
        updatePrefs();
    }

    private synchronized void updatePrefs() {
        vibrate = true;
        if ( mediaPlayer == null) {
            activity.setVolumeControlStream(AudioManager.STREAM_MUSIC);
            mediaPlayer = buildMediaPlayer(activity);
        }
    }

    public synchronized void playBeepSoundAndVibrate(OnMusicListener mOnMusicListener) {
        this.mOnMusicListener = mOnMusicListener;
        if (/*playBeep &&*/ mediaPlayer != null) {
            mediaPlayer.start();
        }
        if (vibrate) {
            Vibrator vibrator = (Vibrator) activity.getSystemService(Context.VIBRATOR_SERVICE);
            vibrator.vibrate(VIBRATE_DURATION);
        }
    }

    static boolean shouldBeep( Context activity) {
        boolean shouldPlayBeep = true;
        AudioManager audioService = (AudioManager) activity.getSystemService(Context.AUDIO_SERVICE);
        if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
            shouldPlayBeep = false;
        }
        return shouldPlayBeep;
    }

    private MediaPlayer buildMediaPlayer(Context activity) {

        try {
            MediaPlayer mMediaPlayer = MediaPlayer.create(activity, R.raw.qrcode_found);
            mMediaPlayer.setLooping(false);
            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setOnCompletionListener(this);
            return mMediaPlayer;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public void onCompletion(MediaPlayer mp) {
        mp.seekTo(0);
        if (mOnMusicListener != null) {
            mOnMusicListener.onCompletion(mp);
        }
    }

    @Override
    public synchronized boolean onError(MediaPlayer mp, int what, int extra) {
        if (what == MediaPlayer.MEDIA_ERROR_SERVER_DIED) {
            activity.finish();
        } else {
            mp.release();
            mediaPlayer = null;
            updatePrefs();
        }
        return true;
    }

    @Override
    public synchronized void close() {
        if (mediaPlayer != null) {
            mediaPlayer.release();
            mediaPlayer = null;
        }
    }

    public interface OnMusicListener {
        void onCompletion(MediaPlayer mp);
    }

}
